The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 01, 2009

Filed:

Oct. 16, 2003
Applicant:

Wouter Detlof Berggren, Amsterdam, NL;

Inventor:

Wouter Detlof Berggren, Amsterdam, NL;

Assignee:

Shell Oil Company, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G 53/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention pertains to a vessel () for storing particulate matter, such as pulverised coal or fly ash, comprising a main part () and, at its bottom portion, at least one discharge device (), which comprises a converging outer shell () and a permeable, converging inner shell () positioned in the outer shell (), the discharge device () being connected to the main part () by means of a first flange () at or near the lower rim of the bottom portion of the main port () and a second flange () at or near the upper rim of the outer shell (). The inner shell () is secured to the inner wall of the outer shell () of the discharge device (), preferably to the inner wall of the second flange (). Thus, the number of gaskets is reduced and/or the positioning of the inner shell becomes less critical.


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Berggren, Wouter. (2009). Vessel for storing particulate matter and discharge device for use in the same (U.S. Patent No. 7581905). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7581905

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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